2499788320 has 24 divisors (see below), whose sum is σ = 5905750284. Its totient is φ = 999915264.

The previous prime is 2499788251. The next prime is 2499788329. The reversal of 2499788320 is 238879942.

It can be written as a sum of positive squares in 2 ways, for example, as 2425759504 + 74028816 = 49252^2 + 8604^2 .

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2499788329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7811679 + ... + 7811998.

Almost surely, 2^2499788320 is an apocalyptic number.

2499788320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2499788320 is an abundant number, since it is smaller than the sum of its proper divisors (3405961964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2499788320 is a wasteful number, since it uses less digits than its factorization.

2499788320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15623692 (or 15623684 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 2499788320 is about 49997.8831551897. The cubic root of 2499788320 is about 1357.1705013549.

The spelling of 2499788320 in words is "two billion, four hundred ninety-nine million, seven hundred eighty-eight thousand, three hundred twenty".